Minor earthquake: M3.3 quake has struck near Unalaska in Alaska

A minor earthquake magnitude 3.3 (ml/mb) has occurred on Thursday, 52 km S of Unalaska, Alaska (32 miles). Exact location of event, depth 38.36 km, -166.5667° West, 53.4044° North. The earthquake was roughly at a depth of 38.36 km (24 miles). The 3.3-magnitude earthquake was detected at 13:32:42 / 1:32 pm (local time epicenter). Global time and date of event 19/04/18 / 2018-04-19 23:32:42 / April 19, 2018 @ 11:32 pm UTC/GMT. All ids that are associated to the event: ak19245089, us1000drq8. Unique identifier: us1000drq8.

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days six and in the last 365 days eighty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 52 km S of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-166.5667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.4044° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	38.36 km	Depth of the event in kilometers.
Place	52km S of Unalaska, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-04-19 23:32:42	Time when the event occurred. UTC/GMT
Updated	2018-04-28 00:01:35	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	168	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,us,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.443	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.78 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	192	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us1000drq8	Id of event.
Event Code	1000drq8	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak19245089,us1000drq8,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.3 quake has struck near Unalaska in Alaska

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